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-374 BLACK BUNA 50D O-RING

Buna-N O-Ring, 9.225 in ID x 0.21 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
20 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
374
Durometer
50 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Nominal Cross Section
3/16 inch
Nominal Inside Diameter
9 1/4 inch
Nominal Outside Diameter
9 5/8 inch
Unit of Measure
EA
SKU:
H50374

Product Specification

-
APG stocks the H50374, an AS568-374 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 9.225 in (234.32 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.645 in (244.98 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, low compression set under sustained load. Expect good resistance to hydraulic fluids, water, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving strong acids or ketones call for a different compound.

You will find this material specified across hydraulic and pneumatic systems, agricultural equipment, and fluid power.

Stocked as H50374 and sold individually. Nominal inside diameter is listed as 9 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Item
H50374
Description
-374 BLACK BUNA 50D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
9.225 inch (234.32 mm)
Actual Outside Diameter
9.645 inch (244.98 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity